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Useful Tropical Plants

Solanum incanum

L.

Solanaceae

+ Synonyms

Solanum coagulans griseum Dunal

Solanum coagulans ochraceum Dunal

Solanum floccosistellatum Bitter

Solanum hierochuntinum Dunal

Solanum melongena incanum (L.) Kuntze

Solanum sanctum L.

Solanum unguiculatum A.Rich.

Common Name: Bitter Apple

Solanum incanum
Close-up of the flower
Photograph by: Patrice Antilahimena
Creative Commons License
Solanum incanum Solanum incanum Solanum incanum Solanum incanum Solanum incanum

General Information

Bitter apple is an erect or spreading perennial plant. The stems can be herbaceous, in which case the plant grows 90 - 120cm tall, or they can become more or less woody, when the plant grows up to 3 metres tall and occasionally becomes a small tree[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. The stems and branches are armed with stout prickles[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
The plant is particularly valued in Africa for its pain-relieving properties and is widely used medicinally there. Selected forms of the plant are sometimes cultivated for their edible fruit in tropical Africa[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].

Known Hazards

The wild form of the plant is toxic, though cultivars have been developed that are cultivated for their edible fruits and leaves[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
The fruits are used as an ingredient of arrow poisons and fish poisons.
All Solanum species contain greater or lesser quantities of spirosolane alkaloids, including solanine and solanidine. These are bitter tasting and potentially poisonous when consumed frequently[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Botanical References

308
Title
Flora Zambesiaca
Publication
 
Author
 
Website
http://apps.kew.org/efloras/fz/intro.html
Publisher
 
Year
0
ISBN
 
Description
An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.

Range

Tropical and subtropical Africa - Senegal to Sudan and Somalia, south to S. Africa..

Habitat

Mainly as a weed of cultivation, around old habitations and overgrazed grassland, also extending into forest edges, riverine vegetation, various types of woodland, thickets, littoral scrub, floodplains, stream-banks, from sea level to 2,438 metres[
308
Title
Flora Zambesiaca
Publication
 
Author
 
Website
http://apps.kew.org/efloras/fz/intro.html
Publisher
 
Year
0
ISBN
 
Description
An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.
].

Properties

Weed PotentialYes
Edibility Rating *  *  *
Medicinal Rating *  *  *
Other Uses Rating *  *
HabitShrub
Height2.00 m
Cultivation StatusCultivated, Wild

Cultivation Details

A plant of the tropics, where it is found at elevations up to 2,200 metres. It grows best in areas where annual daytime temperatures are within the range 20 - 26°c, but can tolerate 10 - 30°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It prefers a mean annual rainfall in the range 700 - 1,000mm, but tolerates 250 - 2,000mm[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
Requires a sunny position[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Plants are tolerant of a wide range of soil conditions, but grow best in fertile, humus-rich conditions[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Tolerates moderate levels of salt in the soil[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Prefers a pH in the range 6.5 - 7.5, tolerating 6 - 8[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Plants are relatively drought tolerant once established[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
There are reports that the plant can become a weed[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
The first harvest is usually ready about 3 - 4 months from sowing the seed and can continue for a year[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
Selection for larger, less toxic fruits and leaves has taken place over time and whereas the wild types produce small, bitter and toxic fruits, cultivated types are available, especially in West Africa, of which the fruits and leaves can be safely eaten in soup and as a vegetable[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
There are two main forms of this plant grown in Africa, one has a bitter taste (probably the wild plant) whilst the other is sweet (probably due to selection over time)[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
,
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
].
Probably a wild form of the cultivated aubergine, S. Melongena[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].

Edible Uses

The green, unripe fruit is eaten raw or cooked[301. Whilst occasionally eaten raw, it is more often cooked as a seasoning in soups etc[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. The fruit is up to 6cm in diameter and weighs around 70g[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Care needs to be taken that only the improved varieties, with lower levels of alkaloids, are used for food[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Leaves[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
]. They are added to soup to improve the flavour[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Care needs to be taken that only the improved varieties, with lower levels of alkaloids, are used for food[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

The fruit and the seed are used to curdle milk and to make cheese[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Medicinal

The plant is especially valued for its analgesic properties and it is commonly used in Africa to treat a wide range of conditions[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. All parts of the plant are used - usually the leaves, roots or fruits are used in decoction, or the roots are chewed or the sap swallowed[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Conditions treated include a sore throat, angina, stomach-ache, colic, headache, painful menstruation, liver pain and pain caused by onchocerciasis, pleurisy, pneumonia and rheumatism[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]
When used externally, the leaf paste, root infusions or the pounded fruits are rubbed into scarifications, the leaf sap is used for washing painful areas, and ash of burnt plants is mixed with fat and applied as an ointment[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Conditions treated include skin infections, whitlow, ringworm, burns, sores, rashes, wounds, warts, carbuncles, ulcers and benign tumours[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]
For the relief of toothache, a root infusion is used as mouth wash, the fruit or the root is rubbed on the gums or the smoke from burning seeds is inhaled[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Hiccups are suppressed by licking a mixture of the ash of burned leaves and salt[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Another widespread use of the plant is in the treatment of venereal diseases. For this purpose, the root powder is mixed with food or rubbed into scarifications; root infusions or decoctions are drunk; roasted, pulverized roots are taken in water; leaf decoctions and fruit sap are drunk; and the fruit sap is applied externally[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

A maceration of the leaves is used as an eye bath to cure ophthalmia[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

The fruit sap is rubbed into scarifications around the eye to treat conjunctivitis[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

The pounded seeds are mixed with pulped fruits to massage aching ears[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The seeds of variety 'paniya' contain 3.8 - 4.8% of a glyco-alkaloid that is used in the synthesis of cortisone[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Extracts of the leaves or flowers are used as ear drops to cure inflammations[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

In order to treat snakebites, a decoction of the roots is drunk; the roots are chewed and the sap swallowed; whilst young chewed leaves or pulped fresh roots are applied externally to the bite wound[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Other Uses

The boiled fruits are used as soap and in tanning leather[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Propagation

Seed - sow in a seedbed or containers. Plant out into their permanent positions when about 6 - 8cm tall[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2019-12-06. <tropical.theferns.info/viewtropical.php?id=Solanum+incanum>

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